Fix: Use caret operator

[localheinz]

This PR

• uses the ^ operator for stable dependencies

[codecov]

Codecov Report

Merging #349 into main will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               main     #349   +/-   ##
=========================================
  Coverage     98.93%   98.93%           
  Complexity      100      100           
=========================================
  Files            22       22           
  Lines           281      281           
=========================================
  Hits            278      278           
  Misses            3        3           

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